{"cve":"CVE-2026-73502","nvd":{"published":"2026-08-18T18:19:33.460","modified":"2026-10-22T22:10:00.250","status":"Deferred","description":"kin-openapi is a Go project for handling OpenAPI files. From 0.2.0 until 0.144.0, openapi3filter.ValidateRequest can encounter a NULL-pointer-dereference denial of service when an operation declares a content parameter whose application/json media type has no schema. In openapi3filter/req_resp_decoder.go, the default defaultContentParameterDecoder dereferences mt.Schema.Value without checking whether mt.Schema is nil, even though doc.Validate() accepts the document under OpenAPI 3.0.x and 3.1.x. A single unauthenticated request supplying the parameter value can panic request validation, causing an aborted request with log growth in the common synchronous net/http path or a full process crash in integrations without recovery. This issue is fixed in version 0.144.0.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3},"cwes":["CWE-476"],"references":["https://github.com/getkin/kin-openapi/commit/68ac2affa325514d7d6e731204d6a1edf6bdff64","https://github.com/getkin/kin-openapi/releases/tag/v0.144.0","https://github.com/getkin/kin-openapi/security/advisories/GHSA-jpcw-4wr7-c3vq","https://github.com/getkin/kin-openapi/security/advisories/GHSA-jpcw-4wr7-c3vq"],"products":[],"source":"nvd","synced_at":"2026-10-23T16:39:26.291718493+00:00"},"epss":{"cve":"CVE-2026-73502","score":0.00507,"percentile":0.42958,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-jpcw-4wr7-c3vq","url":"https://osv.dev/vulnerability/GHSA-jpcw-4wr7-c3vq","summary":"kin-openapi openapi3filter: unauthenticated nil-pointer panic when validating a request against a `content` parameter whose media type has no schema","modified":"2026-09-10T03:50:12.267113169Z","packages":[{"ecosystem":"Go","name":"github.com/getkin/kin-openapi","purl":"pkg:golang/github.com/getkin/kin-openapi","ranges":["<0.144.0"],"fixed":["0.144.0"]}]},{"id":"GO-2026-6112","url":"https://osv.dev/vulnerability/GO-2026-6112","summary":"Nil-pointer panic on content parameter without schema in github.com/getkin/kin-openapi","modified":"2026-09-06T03:25:56.688111711Z","packages":[{"ecosystem":"Go","name":"github.com/getkin/kin-openapi","purl":"pkg:golang/github.com/getkin/kin-openapi","ranges":["<0.144.0"],"fixed":["0.144.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}